| 1. | The value of carotid / total chlorophyll of treatment 1 . 4031 , 1 . 9080 , 1 . 0971 times that of the control respectively . s02 decreased the produce of apparent photosynthetic electron transport ( etr ) , over photochemical quantum yield ( yield ) , non - photochemical quenching ( q 处理100天以后,二、三年生苗木处理多酚氧化酶的活性分别是对照的5 . 7551 、 2 . 1989倍;它们的过氧化物酶活性则是对照的4 . 8484 、 15 . 6403倍。 |